"This 4-Way splitter is compatible with digital broadcast television, digital cable television, off-air antennas and satellite distribution from 15 to 2150MHz. Zinc plated, die-cast housing with precision, machined ports and soldered back ensure 140dB isolation against RF leakage. PC board technology eliminates low frequency hum and provides a clean return path for data from the cable box or cable modem. DC passive for devices requiring DC power such as amplified antennas and DBS dishes. Features: 15~2150 mHz bandwidth for Satellite, Digital Cable Television and Off-Air Digital Transmission. Soldered-back to ensure 140dB isolation. PC board technology for more stability and less noise. DC passive."